Device for strapping boxes, crates, bales, etc.



' 'F-i c. BEINBOTH. DEVICE FOR STRAPPING BOXES, CBATES, BALES, ETC.

APPLICATION FILED MAR. I4, 1922.

Patentd Oct. W, 1922.

2 SHEETS-SHEET l.

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r F. C,- REINBOTH. DEVICE FOR STRAPPING BOXES, CRATES, BALES, ETC. APPLICATION FILED MAR. :4, i922.

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ZSHEETSSHEET 2- Patented on. m, ieaa FRIEDRICH cant nnmnorrn, or BERLIN, GERMANY.

nnvrcn roza s'rnnrrfne Boxes, CRATES, BALES, Euro.

Application fiIed March 14; 1 922. Serial No. 543,737.

To allwhomz't may concern.

Be it known that I, FRIEDRICH CARL REIN- 1 so e citizen of'Germany, residing at 23 Ahsbacherstrasse, Berlin, Germany,have in vented certain new and useful Improvemerits in Devices for Strapping Boxes,

Grates, Bales, etc. (for which I have filed by means of iron straps which areppassed round the box, etc., and more particularly applicationinGermany March 4', 1921), of which the following is aspecification.

This invention relates in general to a de vice for strapping boxes, crates, bales, etc.,

to devices by which an ironstrap, after a buckle has been attachedtoits one end, is

pulled tight at itsother. end by meansof a lever' and, while being kept taut,has its sec{ end end made fast to the said buckle.

Knowndevicesofthis kind are allcoupled with one drawback oranother, or even have "a number of disadvantages. With;

some devices it is necessary to use iron straps pulled taut and fastened. \Yhen a length of strap-iron is cut oil" before the bandis V the bolt of a certain length so that it is not possible to pass-the strap around the box and cut it off from its coil only after the band has been fastened the end piece by. which the band is seized and pulledtaut is wasted and the strappingoperation is troublesome. 'W'ith other devices of this kind there is the] additional drawback that, to enable the bandto bepulled taut,1its end has to be threaded through the slot of a bar or bolt prior to its being pulled taut by turning With this arrangement a still a greater length of iron strip is wasted, the

operation is troublesome, and the uncoilingof the length of iron wound round the bolt involves loss of'time and labour.

WVith other devices which do not necessitatea section of strip being cut off from its coil prior to its being passed round the box and tautened, but which enablethe strip to a clamping device in which it is held fast and be inserted in p pulled tight bit by bit by means of a lever, there is the disadvantage that the end of the iron strap has to be passed round the one edge of the buckle at anangle of almost 180 and has to be drawn round'this edge which produces an extraordinary amount of'friction and necessitates. the application of a much stronger pull than that which is utilized for actually tighten ing the strap aroundthe box.

consists inthe fact that 7 cannot be any utilized; of the excessive stress to which the part of The force which/has thus to be exerted unnecessarily is not only that by which the said friction has to be overcome but also an additional quota for bending the iron strap around the edge of the buckle and for stretching the bent band section after it has beenpulled roundthe saidedge. A particularly disadvantageous feature of the section of the iron strap'at which the force is applied has to be subjected to a much stronger pull than the part of the band that actually lies against and ties the box. In other words the tensile strength ofthe strap iron that is in contact with the box and secures the same Hence, on account the strip that is used for pulling the band taut subjected the iron strap used has to be stronger than is necessary for actually securing the box. In other words the amount of material used and the costs are unnecessarily great. e.

' l/Vith other known devices the iron strap hasto be we'akened'at the ends by holes for rivets. This arrangement also involves the use of iron strap which is stouter than necessary in proportion as its section is weakened by the rivet holes.

Other devicesfare known by which a pull is applied to only one end of the iron band. The tension' applied with the same must therefore be transmitted to the section on the fourth side of the box through the sections lying against the three other sides of the same. Since the iron band is held back by the, friction at each edge of the box, the

devices of this kind tension transmitted to the section that lies to be cut off from its coil after it has been.

properly applied to the and the tensile strength fully utilized so box, crate or bale, of the iron strap is that its section need not be madegreater than is necessary for securing the'box in an adequate manner.

The novel device. is extraordinarily simple in use. The invention is shown-in the drawing in which Fig. 1 is a side view of a device in position on a box and engaged in strapping the same,

Fig. 2 is a plan view of the main lever with a portion of its handle broken off and its claw at its left end embracing the right hand edge of a strap buckle.

Fig. 3 is a perspective view of the main lever with the buckle-engaging claw pivoted in its left end and its erect clamping member pivoted midway between the two ends of its plate, the clamping lever being removed from the clamping member.

Fig. 41 is a perspective view of the clamping lever.

Fig. 5 is a perspective view of a buckle with one end of a strap attached to its two right hand cross bars and the other end of the strap passed around its left hand cross bar shortly before the final fastening on the same. The buckle in this figure is drawn on a larger scale than in the other figures.

Fig. 6 is a longitudinal section through the buckle-engaging claw at the left hand end of the main lever on an enlarged scale, the freeend of a strap being shown fixed to the right hand end of the buckle, and the end of the strap leading to its coil being shown in the act of being pulled taut.

Fig. 7 is a similar representation to Fig. 6 except that the iron strap, having been fully tightened, is shown with its end that leads to its coil bent round the right hand edge of the left hand cross bar of the buckle; prior to the final fastening operation.

The device consists of the following parts: The main lever consists of a handle 8 with a plate 1 attached to its one end, the plate being provided with two lateral eyes 2 at its left hand end in which the buckle-engaging claw 3 is journalled and with two. lateral eyes 4 midway between two ends which receive the pivots of a clamping member 5 provided with a clamping surface 6 and two lateral inverted hooks 7. The two lateral hooks 7 are adapted for receiving the lateral pivots or pins 9 of a clamping handle 10. When the pivots 9 are slipped into the hooks '7 the bottom clamping surface 11 of the clamping handle rests upon the clamping surface 6 of the clamping member 5.

The buckle 12 shown in Figs. 1, 2 and 5-10 consists of a piece of fiat iron 12 with slots 13 and lt punched therein so as to form three cross bars. Two lateral lugs 15 are struck up at the one end of the buckle as shown in Fig. 5. The right hand edge of the left hand cross bar and the left hand edge of the middle cross bar are serrated as shown in Figs. 2 and 5. In some cases the serrations 16 at the left hand edge of the middle bar may be dispensed with.

The device is used in the following manner: A. length 17 of iron strap, sufficient to go round the case or bale, is unwound from its coil, but not severed from the same. The strap 17 is threaded through the slot 1 1 of the buckle 12 and passed completely round the box, its free end being then again threaded through the slot 1 1 and made to extend along the bottom surfaces of the middle and the right hand cross bars of the buckle 12 and then bent up at the right edge of the right hand cross bar and finally tucked into the slot 13 as shown in Fig. 5. The main lever 1 is now moved up against the buckle with its claw 13 in engagement with the parts of the buckle that project laterally from both sides of the right hand end of the strap 17, Fig. 5. The end of the iron strap located between the buckle and the coil is then placed between the hooks 7 and laid onto the clamping surface 6 of the clamping member 5. The clamping lever 10 is now inserted with its pivots 9 in the hook 7. The handle 10 or the clamping lever is now pressed down to grip the strap between the clamping surfaces 1.1 and .6. On the downward motion of the handle 10 being continued the clamping member 5 will be swung round its pivots in the eyes 1 and the strap 17 will be pulled towards the right as indicated by dotted lines in Fig. 1. On the handle 10 now being turned to the left again the strap 17 between the clamping surfaces will be released and these surfaces will slip along the strap and grip the same at another point when the handle 10 is swung to the right again. Thus the strap is taken up bit bit when the handle 10 is oscillated to and fro. It is to be noted that the same motion by which the strap 17 is gripped between the clamping surfaces 6 and 11 and pulled towards the right results in an equal pressure being exerted towards the left of the pivots of the clamping member 5 in the lateral eyes 4, this pressure being thus transmitted through the claw 3 to the buckle 12 and through this buckle to the right hand end of the iron strap. Hence, both ends of the strap are simultaneously pulled in opposite directions. The tension required for pro erly tautening the iron strap is obtaine by oscillating the handle 10 to and fro.

After the strap has been sufiiciently tightened the handle 10 with the strap clamped between the clamping surfaces 11 and 6 is swung down into the position shown by broken lines in Fig. 1 in which it lies against the handle 8. The two handles 10 and 8 are now both seized together and swung u Wards around the pivots in the eyes 2, tffe left hand end of the strap being thereby brought into the position shown in Fig. 7 in which it is bent round the right hand edge of the left hand cross bar of the buckle. The strap is then turned down towards the left and the lateral lugs 15 are then struck down by a hammer to clinch the strap on the top surface of the left hand cross bar of 1 the buckle.

f metallic tape comprising, a

I claim: a a l.A device for strapping objects with ceiving the said tape; a primary lever; a buckle-engaging claw pivoted in oneend of the primary lever; a rocking member pivoted at a distance from the said end of the primary lever; a tape-clamping jaw and hooks on therocking member; and a secondary gage with the said hooks and a second tape a handle with pivots adapted to enclamping jaw adapted to cooperate with' the firstjaw. a

.2. A device for strapping objects with metallic tape comprising, a buckle with two j tape-clinching lugs; 20

buckle for regage with-the said hooks and a second tapeclamping jaw adapted to cooperate with the a 3. A device for strapping objects with metallic tape comprising, a buckle with two slots for receiving the said tape, lateral tapeclinching lugs, and serrations at an edge of one of the two said slots; a primary lever;

a buckle-engaging claw pivoted in one end of the primary lever; a rocking member pivoted at a distance from the said end of the primary lever; a tape-clamping jaw and hooks on the rocking member; and a secondary handle with pivots adapted to ens gage with the said hooks and a second tapeclamping jaw first jaw. v a

In testimony whereof I have signed thls specification in the presence of two Witnesses.

FRIEDRICH CARL REINBOTH.

Witnesses:

ARTHUR SoHRoEDnR, JOHN W. BULLsLnY.

adapted to cooperate with the j 

